Governor



(No Model.) l

R. E. -PLASS- Y GOVERNOR. No. 476,408. Patented June 7, 1892.,

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NITED STATES PATENT GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 476,408, dated J une 7, 1892.

Application filed September 6,1889. Serial No. 323,229. (No model.)

To @ZZ whom, zr may concern,.-

Be it known that I, REI/'BEN H. PLASS, a citizen of the United States, residing at Brooklyn, in the county of Kings and State ot' New York, haveinvented certain new and useful Improvements in Governors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to governors, and particularly to that class designed to regulate the passage of gas, steam, air, or the like under pressureeto a burner, place of storage, or the like. In governors of this kind in which the movement of a diaphragm acted upon by iiuid is utilized to control the amount of the fluid allowed to pass great inconvenience has been experienced on account ot the dificultyin securing a substance suitable for the purposes of a diaphragm, the difiiculty being to obtain a diaphragm having the necessary iiexibility which will be impervious to and not be injured by contact with gas, air, steam, or other liuid.

The object of the present invention is to produce a governor capable of use in regulating the iow ot gas, steam, air, and any other fluid under pressure which shall have a regulating-diaphragm possessing the necessary fiexibility and not liable to injury by contact with steam, gas, or the like.

lVith this object in view the invention resides in a regulator whereby the flow of fluids is controlled, comprising a diaphragm, preferably of thin metal, stamped or otherwise formed to produce a iuted or corrugated body, the indentation formed to produce the flutes or corrugations being of a continuous spiral form, presenting a flexible body to be acted upon by fluid under pressure, and a valve connected with the diaphragm and operated by its movements.

I have illustrated the invention in the accompanying drawings, in which- Figure l is a central vertical section of a governor made in accordance with my invention. Fig. 2 is a side elevation of the governor. Fig. 3 is a section on the line a: of

Fig. l, and Fig. 4 is a detail view of the diaphragm.

In the drawings, A represents the casing of the governor, preferably made in two parts, the lower part containing a globe-valve seat a, an inlet a', and an outlet a2 and the upper' part containing a spring and means for imposing tension upon the spring, whereby the pressure necessary to move the diaphragm is regulated.

The diaphragm B is secured to the interior of 'the regulator, preferably by clamping its edges between the parts of the shell A. The diaphragm is provided at its center with an opening, through which projects a screw-rod of bar b. rllhis bar is adjusted and held in proper position relative to the diaphragm by jam-nuts b', one of which is arranged on each side of the diaphragm.

In order that the amount of pressure necessary to move the diaphragm and consequently to operate the valve with which it is connected maybe regulated, I provide a spring C, the lower end of which bears upon the upper jam-nut and the upper end of which encircles a screw-pin c and bears upon a collar c of the piu. The pin is screw-threaded and enters through a corresponding opening in the top of the shell B, and it is provided at the extreme upper end with a thumb-nut, whereby it is moved up and down to impose more or less tension upon the spring O. In the lower portion of the shell is the globevalve chamber a and the two puppet-valves D, adapted to be seated upon the globe-seat. The valve consists of the valve-stem a3 and the valves proper d4. The upper one of these valves d4 is designed to close the opening Z5 of the globe-seat a and the lower valve is de signed to close the opening a in the lower portion of the globe-valve seat. The lower end of the screw-rod b is connected by a swiveljoint or in any other suitable manner with the valve-rod b, so that as any uid under pressure enters the inlet a a portion of it passes upward and impiuges against the lower face of the diaphragm. NVhen this pressure is sufficient to overcome the spring C, the diaphragm will rise, carrying with it the Valvestem h and closing the passages fro rn the globevalve seat, thus shutting on. the flow of iiuid thereto.

It has been found that a diaphragm constructed as herein described will move upward and the valve operate without materially controlled, comprising a diaphragm, preferably of thin metal stamped or otherwise formed to produce tintes or corrugations, the indentations producing the flutes or corrugations being of a continuous spiral form, substantially as described.

In testimony whereof I alix my signature in presence of two witnesses.

REUBEN H. PLASS.

YWitnesses:

R. G. DYRENFORTH, DAVID H. MEAD, 

